<!DOCTYPE HTML>
<html>
    <head>
        <meta charset='utf8'>
        <title>背景图片垂直平铺</title>
        <style>
        body{
            background-image: url("./src/image/bg.jpg");
            background-repeat: repeat-y;
        }
        h1{
            color: white;
        }
        </style>
        <body>
             <h1>背景图片垂直平铺</h1>
        </body>
    </head>
</html>